PACKAGE AIR CONDITIONER - Quiz

1) Which switch is interlocked to become on if the power isolator is off in package AC?

Thermostat Blower motor Crankcase heater Compressor starting

2) Which valve is opened first after installing the package AC for test run?

Ball valve Globe valve Service valve Solenoid valve

3) What is measured by clamp tester during 'Test run' of package AC?

Idle pressure Running current Rotation per minute Vacuum holding strength

4) What is the purpose of TEV in refrigeration cycle of package AC?

Condensing gas Throttling refrigerant Flush out dry nitrogen Cooling the evaporator

5) Which safety control is actuated by excess of heat /current in package AC?

Selector switch Over load relay Water flow switch High pressure cut-out